Suspension joint



1934- E. s. STODDARD 1,980,448

SUSPENSION JOINT Filed June 19, 1931 Patented Nov. 13, 1934 UNITEDSTATES SUSPENSION JOINT Edgar S. Stoddard, Berwyn, Ill., assignor to TheConover Company, Chicago, 111., a corporation of Illinois ApplicationJune 19, 1931, Serial No. 545,607

2 Claims.

The present invention relates to tank suspensions, and has particularreference to an improved joint for the suspension of dishwashing machinetanks and the like.

v A principal object of my invention is the provision of a joint wherebydishwashing machine tanks and the like may be removably suspended fromsuitable supporting members. An additional object is to provide aremovable suspension joint which is water tight, and easily constructed.A further object is the construction of an improved type of gasket to'beused in connection with the removable joint. These and other objectswill be apparent from an understanding of the following 1 description ofa preferred embodiment of my invention.

In accordance with my invention the lower edge of a depending supportingflange or casing is turned inwardly and upwardly substantially parallelto the flange portion, and spaced therefrom.

The upper edge of a dishwashing machine tank or other receptacle whichit is desired to attach to the supporting flange is turned outwardly anddownwardly substantially parallel to the tank 26 portion and spacedtherefrom. The tank is then lowered through the supporting casing sothat the turned edges of the casing and tank interlock to form a loosejoint. To render the joint waterproof and noiseproof, a flexible gasketsubstantially U-shaped in cross-section is fitted about the curled tankedge and into the channel formed by the upwardly extending edge of thesupporting casing.

My invention will be further understood by refac'erence to the followingmore specific description and the accompanying drawing, in which Fig. lis a cross-sectional view of a dishwash ing machine tank suspended froma sink assembly in accordance with my invention;

Fig. 2 is a detailed sectional view of the suspension joint used in themodification shown in Fig. 1; and

Fig. 3 is a cross-section taken through the center of a preferred formof gasket to be used in my tank suspension joint.

In the drawing, 10 represents a sink basin having an adjacent shelf ordrain portion 11. The shelf 11 is provided with a cylindrical flange 12depending therefrom. The lower edge portion of this flange is turnedinwardly and upwardly substantially parallel to the cylindrical flangeto form a curled portion 13 having a U-shaped crosssection, the sides ofwhich portion are spaced a substantial distance apart.

Through the opening defined by flange 12 and curled portion 13 islowered a dishwashing machine tank 14, having a top 19' spaced from thetank by gasket 18. The upper edge of this tank is turned outwardly anddownwardly substantially parallel to the walls of the tank to form across-section having an inverted Ll-shaped curled portion 15, whichportion cooperates with curled portion 13 to form a loose interlockingjoint.

When the tank is in place the members 12, 15,

13 and 14 are spaced a substantial distance apart.

Inasmuch as the sink structure and tank are generally coated withvitreous enamel, and as it is desirable to make the jointbothwater-tight and noiseless, a circular gasket 16, composed of a resilientmaterial such as rubber, and conforming to the shape of the cooperatingportions of the joint, is provided. This gasket is a continuous ringsubstantially U-shaped, in cross-section,

and is fitted about the curled portion 15 of the tank and into thechannel formed by the in wardly and upwardly turned edge 13 of thecylin-- drical flange. In this manner, there is no contact of metal uponmetal in the joint. The weight of the dishwashing machine insures a firmjoint which is noiseless and water-tight.

It is preferred to employ the modified gasket shown in Fig. 3. Thisgasket-is provided'with outwardly extending projections 1'7. The gasketincluding projections 17 is preferably slightly greater in size than thedistance between the upturned edge of curled portion 13 and the flange12. When the tank is lowered, in position, with the gasket fitted aboutthe downturned edge of curled portion 15, these flexible projections arereadily contorted to form a firm connection regardless of slightirregularities in the shape of the flange and curled edge. A smoothgasket is less readily contorted to the exact shape of the flange andcurled edge.

In certain instances it may be desirable that the flange 12 beeliminated, whereby the top of the tank will extend above the member 11.That is, the supporting member may be simply provided with an openingsurrounded by an upturned flange. Also, it is not essential that thechannel formed by flange 12 and curled portion 13 be continuous.

My invention is to be distinguished from certain prior art joints, forexample, as shown in Patent No. 593,558, in which interlocking membersare crimped to form a permanent uniom.

Many modifications of my invention-will occur to one skilled in the artand such variations as come within the spirit of my invention areintended. to be included in the appended claims.

I claim: 1. In combination, a sink shelf having a cylindrical flangeprovided with an inwardly and upwardly turned edge spaced therefrom toform a supporting channel, a tank provided with an outwardly anddownwardly turned upper edge, said edge spaced therefrom to form asupporting channel, a supported member having an upwardly extendingportion provided with an outwardly and downwardly turned edge spacedtherefrom,

a resilient U -shaped gasket mounted about said downwardly. turned edge,the outer portions of said gasket being provided with vertically spacedprojections contacting the walls of said support ing channel, saiddownwardly turned edge and said gasket being removably fitted into saidsupporting channel.

EDGAR S. STODDARD.

